France, 2039. One night, a group of activists pursued by the state vanish without a trace. Julia Bombarth is one of them. When she awakens, she finds herself trapped in an entirely unfamiliar world: PLANET B.

发现了多个巧合的约阿希姆声称自己的前世是波斯尼亚的一名士兵。他和朋友们带上了摄像机，踏上一次探寻之旅。一行人在萨拉热窝寻找前世，也因此慢慢了解几十年前在这里发生的战争。在这部模糊纪实与虚构的独特影片中，历史的伤痕和个体记忆相互交织。